Image:ESTUDIO GEOQUIMICO DE LOS SEDIMENTOS SUPERFICIALES DEL LITORAL NORORIENTAL DEL GOLFO DE CARIACO, ESTADO SUCRE, VENEZUELA.pdf

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This research presents some geochemical aspects of the marine surface sediments of the north coast of the Gulfof Cariaco, in the state of Sucre, Venezuela. The gulf has a tectonic structure and a fault system mainly featuring sandysediments, most of which are quite permeable and have an average hydric content of 22.44%. The content of organic matterdetected was low, averaging 7.63%, organic carbon and calcium carbonate commanding 0.97% and 21.97%, respectively.Contrarily, phosphorus and total nitrogen were high, 360.03 mg.g-1 for the former and 396.29 mg.g-1 for the latter, the totalnitrogen to phosphorus ratio being 1.09, which indicates a certain degree of organic fertility. The metal concentrationspresented different distributions, averaging 3548.58, 14.63, 13.68, 11.59, 10.23, 2.29, 1.04, and 0.57 mg.g-1 for iron,manganese, nickel, zinc, chromium, copper, cadmium, and lead, respectively, indicative of contamination, especially bycadmium. The nonlinearity with the iron presented by some metals such as copper, nickel, and manganese suggests theexistence of anthropogenic influxes, probably swayed by river-borne industrial contributions, including the exogenous dischargesrunning seawards from the south coast.

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current10:25, 25 March 2016 (424 KB)William Senior (Talk | contribs) (This research presents some geochemical aspects of the marine surface sediments of the north coast of the Gulfof Cariaco, in the state of Sucre, Venezuela. The gulf has a tectonic structure and a fault system mainly featuring sandysediments, most of which)

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